Beotjgh



(No Model.)

R. A. GHESEBROUGH.

STEAM GENERATOR AND SUPERHBATER. No. 344,476. Patented June 29', 1886mlness e5. 172116122213 521% UNITED STATES PATENT OFFICE.

ROBERT A. OHESEBROUGH, OF NEV YORK, N. Y.

STEAM GENERATOR AND SUPERHEATER.

SPECIFICATION forming part of Letters Patent No. 344,476, dated June 29,1886.

Application filed January 20,1886. Serial No.189,145. (N0 model.)

To all whom it may concern:

Be it known that I, ROBERT A. OnEsE- BROUGH, of the city and county ofNew York,

in the State of New York, have invented a new and useful ImprovementinSteam-Generators and Steam Superheaters, of which the following is aspecification.

The object of my invention is to provide a simple and inexpensiveapparatus which may be employed either as a steam-generator for heatingdwellings and other buildings by steam or which may be employed as asteamsuperheater. This apparatus when employed as asteamgenerator hasthe advantage that it will be safe in its operation and will requirevery little attention, and when used either as a steam generator orsuperheater it has the advantage that it will not soon burn out andrequire renewal.

The invention consists, essentially, in the combination, with animperforate steam generating or superheating coil, of a receptaclecontaining lead or other easilyfusible metal or other heat-transmittingmedium, in which the coil is directly immersed, with theheattransmitting medium in direct contact with its imperforate surface,and a furnace for supplying heat to the exterior of the receptacle.

The heat-transmitting medium may be of any material which will transmituniformly to all parts of the steam generating or superheating coilimmersed in it the heat received from the receptacle in which the mediumis contained.

The accompanying drawing represents a sectional elevation of anapparatus embodying my invention.

A designates a steam generating or superheating coil of pipe which isimmersed directly in lead or other heat transmitting medium 13, the saidmedium being in direct contact with the convolutions of the coil A.

O designates a receptacfe represented as made in the form of a pot-likevessel, which is of sufficient size to contain the coil A and the leador other heat-transmitting medium B, in which it is immersed. Thisvessel may have at the upper edge a flange, 0, whereby it is supportedon a brick structure forming a heating-chamber, D, within which thevessel or receptacle 0 depends.

In this example of the invention the furnace E, whereby heat isimpartedto the receptacle 0, the lead or other heat-transmitting mediumE, and to the coil A, is external to the heating-chamber D andcommunicates therewith by a throat or opening, e.

The furnace, in which is the usual grate, e, is provided with fire andash-pit doors, 0" 6 and the products of combustion from the furnace,after passing through the chamber D and heating the receptacle or vessel0 therein, escape at the smoke-outlet d.

In order to support the receptacle 0 at the center, I have represented abrick pier or support, f, through which a pipe, f, may be extended, andwhen desired the lead or other heat-transmitting medium B may bewithdrawn from the receptacle 0 through the pipe f.

It will be observed that the lead or other heat-transmitting medium isin direct contact with most or all of the convolutions of the hence theheat transmittedto the coil A will be uniform, and no injury will resultto the coil by lack of attention on the part of the person in charge.Hence the said construction of steanrgenerating apparatus will be verydesirable for private dwellings and other buildings, and the sameapparatus is of great value as a steam-superheater, because it will notsoon be burned out and require renewal.

It will be understood that the steam generating or superheating coil Ais imperforate, and hence no water or steam which may be contained in orpassing through the coil can escape into the heat-transmitting medium B.

WVhat I claim as my invention, and desire to secure by Letters Patent,is-- The combination,with an imperforate steamgenerating or superheatingcoil, of a receptacle containing a heat-transmitting medium in which thecoil is directly immersed, with the said medium in direct contact withits imperforate surface, and a furnace for applying heat to the exteriorof said receptacle, substantially as herein described.

ROBT. A. OHESEBROUGH.

Witnesses:

G. HALL, FREDK. HAYNES.

coil A, the latter being immersed in it, and

